REDUCED NUCLEAR MAGNETIC-RELAXATION BY PARAMAGNETIC IMPURITIES IN ONE DIMENSION

被引:9
作者
RICHARDS, PM
机构
[1] Sandia Laboratories, Albuquerque
来源
PHYSICAL REVIEW B | 1979年 / 20卷 / 07期
关键词
D O I
10.1103/PhysRevB.20.2964
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The paramagnetic-impurity contribution to NMR relaxation of a diffusing nucleus is shown to be proportional to c2 in one dimension as opposed to c in three dimensions, where c is the impurity concentration. The mechanism is thus not expected to be important for one-dimensional superionic conductors except at high doping levels, whereas it is significant even in nominally pure" three-dimensional superionics. This brings into question the interpretation of recent NMR results in supposedly one-dimensional eucryptite as being due to paramagnetic impurities. © 1979 The American Physical Society."
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页码:2964 / 2970
页数:7
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